HY29F800ATG-70 datasheet(9/40 Pages) HYNIX

Part #	HY29F800ATG-70

Description	8 Megabit (1Mx8/512Kx16), 5 Volt-only, Flash Memory

Download	40 Pages

Scroll/Zoom	100%

Manufacturer	HYNIX [Hynix Semiconductor]

Direct Link	http://www.skhynix.com/kor/main.do

Logo

9 / 40 page

9

Rev. 1.1/Feb 02

HY29F800A

The flow chart in Figure 1 illustrates the proce-

dure for protecting sectors, and timing specifica-

tions and waveforms are shown in the specifica-

tions section of this document. Verification of pro-

tection is accomplished as described in the Elec-

tronic ID Mode section and shown in the flow chart.

The procedure for sector unprotection is illustrated

in the flow chart in Figure 2, and timing specifica-

tions and waveforms are given at the end of this

document. Note that to unprotect any sector, all

unprotected sectors must first be protected prior

to the first unprotect write cycle.

Sectors can also be temporarily unprotected as

described in the next section.

Temporary Sector Unprotect Operation

This feature allows temporary unprotection of pre-

viously protected sectors to allow changing the

data in-system. Temporary Sector Unprotect mode

is activated by setting the RESET# pin to V

ID. While

START

NOTE: All sectors must be

previously protected.

Set: TRYCNT = 1

Set: A9 = CE# = OE# = V

ID

Set: RESET# = V

IH

WE# = V

IL

Wait t

WPP2

Set:

A9 = V

ID

OE# = CE# = V

IL

Read Data

Data = 0x00?

NSEC = 18?

YES

TRYCNT = 1000?

NO

Increment TRYCNT

NO

YES

DEVICE FAILURE

NO

YES

Remove V

ID from A9

SECTOR UNPROTECT

COMPLETE

APPLY V

CC

Set Sector Group Address:

A[18:12] = Sector NSEC

A0 = A6 = V

IL

A1 = V

IH

NSEC = NSEC + 1

Set: NSEC = 0

WE# = V

IH

Figure 2. Sector Unprotect Procedure

in this mode, formerly protected sectors can be

programmed or erased by invoking the appropri-

ate commands (see Device Commands section).

Once V

ID is removed from RESET#, all the previ-

ously protected sectors are protected again. Fig-

ure 3 illustrates the algorithm.

Electronic ID Mode Operation

The Electronic ID mode provides manufacturer and

device identification and sector protection verifi-

cation through identifier codes output on DQ[7:0]

or DQ[15:0]. This mode is intended primarily for

programming equipment to automatically match a

device to be programmed with its corresponding

programming algorithm. The Electronic ID infor-

mation can also be obtained by the host through a

command sequence, as described in the Device

Commands section.

Operation in the Electronic ID mode requires V

ID

on address pin A[9], with additional requirements

Similar Part No. - HY29F800ATG-70

Manufacturer	Part #	Datasheet	Description
Hynix Semiconductor	HY29F800	509Kb / 40P	8 Megabit (1Mx8/512Kx16), 5 Volt-only, Flash Memory

More results

Similar Description - HY29F800ATG-70

Manufacturer	Part #	Datasheet	Description
Hynix Semiconductor	HY29F800	509Kb / 40P	8 Megabit (1Mx8/512Kx16), 5 Volt-only, Flash Memory
Hynix Semiconductor	HY29F080	366Kb / 38P	8 Megabit (1M x 8), 5 Volt-only, Flash Memory
ATMEL Corporation	AT49F008	124Kb / 12P	8-Megabit 1M x 8 5-volt Only Flash Memory
	AT49F080	98Kb / 12P	8-Megabit 1M x 8 5-volt Only Flash Memory
	AT49SV802A	417Kb / 31P	8-megabit 1.8-volt Only Flash Memory
	AT29C010A	408Kb / 18P	1-megabit (128K x 8) 5-volt Only Flash Memory
	AT49F001	152Kb / 16P	1-Megabit 128K x 8 5-volt Only Flash Memory
	AT49F002	182Kb / 16P	2-Megabit 256K x 8 5-volt Only Flash Memory
Hynix Semiconductor	HY29F002T	381Kb / 38P	2 Megabit (256K x 8), 5 Volt-only, Flash Memory
ATMEL Corporation	AT49F040B	239Kb / 19P	4-megabit (512K x 8) 5-volt Only Flash Memory

More results

HY29F800ATG-70 Datasheet(PDF) 9 Page - Hynix Semiconductor

HY29F800ATG-70 Datasheet(HTML) 9 Page - Hynix Semiconductor

Similar Part No. - HY29F800ATG-70

Similar Description - HY29F800ATG-70

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

Datasheet Download

Link URL